In this articleTMFCanadian and American flags fly near the base of the Ambassador Bridge connecting Canada to the U.S. in Windsor, Ontario, Canada, on Wednesday, May 26, 2021.Cole Burston | Bloomberg | Getty ImagesDETROIT — There's growing concern that President-elect Donald Trump's plan to impose 25% tariffs on Canadian imports would be an existential threat to the country's recovering automotive industry.Potential tariffs on vehicles and automotive parts are particularly alarming for the province of Ontar ...